Cited by 472Alzheimer's disease research and treatmentsSirtuins and Resveratrol in MedicineDementia and Cognitive Impairment Research

NAD + supplementation normalizes key Alzheimer’s features and DNA damage responses in a new AD mouse model with introduced DNA repair deficiency

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Hou, Yujun, Lautrup, Sofie, Cordonnier, Stephanie, Wang, Yue, Croteau, Deborah L., Zavala, Eduardo, Zhang, Yongqing, Moritoh, Kanako +5 more·2018·Proceedings of the National Academy of Sciences

Abstract

Emerging findings suggest that compromised cellular bioenergetics and DNA repair contribute to the pathogenesis of Alzheimer’s disease (AD), but their role in disease-defining pathology is unclear. We developed a DNA repair-deficient 3xTgAD/Polβ +/− mouse that exacerbates major features of human AD including phosphorylated Tau (pTau) pathologies, synaptic dysfunction, neuronal death, and cognitive impairment. Here we report that 3xTgAD/Polβ +/− mice have a reduced cerebral NAD + /NADH ratio indicating impaired cerebral energy metabolism, which is normalized by nicotinamide riboside (NR) treatment. NR lessened pTau pathology in both 3xTgAD and 3xTgAD/Polβ +/− mice but had no impact on amyloid β peptide (Aβ) accumulation. NR-treated 3xTgAD/Polβ +/− mice exhibited reduced DNA damage, neuroinflammation, and apoptosis of hippocampal neurons and increased activity of SIRT3 in the brain. NR improved cognitive function in multiple behavioral tests and restored hippocampal synaptic plasticity in 3xTgAD mice and 3xTgAD/Polβ +/− mice. In general, the deficits between genotypes and the benefits of NR were greater in 3xTgAD/Polβ +/− mice than in 3xTgAD mice. Our findings suggest a pivotal role for cellular NAD + depletion upstream of neuroinflammation, pTau, DNA damage, synaptic dysfunction, and neuronal degeneration in AD. Interventions that bolster neuronal NAD + levels therefore have therapeutic potential for AD.

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Crossref · 10.1073/pnas.1718819115

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  • NMN and NR protect against diabetes, Alzheimer disease, endothelial dysfunction, and inflammation.

    “NMN and NR demonstrated protect against diabetes, Alzheimer disease, endothelial dysfunction, and inflammation.”

    From NAD+ Precursors Nicotinamide Mononucleotide (NMN) and Nicotinamide Riboside (NR): Potential Dietary Contribution to Health (2023) · cites this paper as [24]

    The Discussion (p. 7) reports that NR improved several Alzheimer-like features, including neuroinflammation, in mouse models; it also cites animal-model findings for NMN and Alzheimer-related outcomes. The paper does not establish protection against diabetes or endothelial dysfunction, and its inflammation finding is specific to neuroinflammation in the Alzheimer mouse models. (LLM, conf=0.88)

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  • NR significantly reduced neuroinflammation, hippocampal neuron apoptosis, phosphorylated Tau, and DNA damage, while increasing neurogenesis by almost 20%.

    “Futhermore, NR significantly reduced neuroinflammation, apoptosis of hippocampal neurons, phosphorylated Tau and DNA damage, while also increasing neurogenesis by almost 20% [24].”

    From NAD+ Precursors Nicotinamide Mononucleotide (NMN) and Nicotinamide Riboside (NR): Potential Dietary Contribution to Health (2023) · cites this paper as [24]

    The Results (pp. 6–7) report reduced phosphorylated Tau, DNA damage, and apoptosis after NR treatment; the Discussion (p. 7) reports reduced neuroinflammation. The Results (p. 4) also report increased proliferation of neuronal progenitor cells, but our copy does not give an almost-20% increase in neurogenesis. The findings concern AD mouse models and cultured mouse cells, rather than an unqualified effect. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • NR protects cognitive function, synaptic plasticity, learning, memory, and motor function in Alzheimer disease models.

    “NR demonstrated protective effects on cognitive function, synaptic plasticity, learning, memory, and motor function in Alzheimer’s disease models [24, 27].”
  • NAD+ supplementation normalizes key Alzheimer's features and DNA damage responses in an Alzheimer's disease mouse model.

    “NAD+ supplementation normalizes key Alzheimer’s features and DNA damage responses in an AD mouse model [74].”
  • AD mouse models with Polβ heterozygosity feature defective DNA repair and show increased synaptic and cognitive deficits, neuronal dysfunction and cell death.

    “AD mouse models with Polβ heterozygosity feature defective DNA repair and showed increased synaptic and cognitive deficits, neuronal dysfunction and cell death [502].”

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Authors
Hou, Y., Lautrup, S., Cordonnier, S., Wang, Y., Croteau, D. L., Zavala, E., Zhang, Y., Moritoh, K., O’Connell, J. F., Baptiste, B. A., Stevnsner, T. V., Mattson, M. P., & Bohr, V. A.
Affiliations
  • National Institutes of Health (US)
  • Aarhus University (DK)
  • University of Copenhagen (DK)
Venue
Proceedings of the National Academy of Sciences
Published
2018-02-05
Volume
115
Issue
8
Pages
E1876-E1885
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2793585092
Cited by
472
References
71
Citations by year
2026: 50 · 2025: 57 · 2024: 56 · 2023: 58 · 2022: 58 · 2021: 67 · 2020: 70 · 2019: 39 · 2018: 17
FWCI
33.08
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, other-oa)
  • PubMed (publishedVersion)
Funders
HHS | NIH | National Institute on Aging (ZIA AG00073517)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease, NAD+ supplementation, nicotinamide riboside, DNA repair deficiency, DNA damage response, phosphorylated tau, neuroinflammation, neuronal apoptosis, SIRT3, brain energy metabolism, synaptic dysfunction, hippocampal synaptic plasticity, cognitive impairment, amyloid-beta
MeSH terms
Alzheimer Disease, Animals, Disease Models, Animal, DNA Damage, Gene Expression Regulation, Male, Mice, Transgenic, NAD, Niacinamide, Pyridinium Compounds, tau Proteins, Sirtuins, Mice, Neurogenesis, Sirtuin 3, Cognitive Dysfunction

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